JPS55127038A - Stem and semiconductor device using the same - Google Patents
Stem and semiconductor device using the sameInfo
- Publication number
- JPS55127038A JPS55127038A JP3443279A JP3443279A JPS55127038A JP S55127038 A JPS55127038 A JP S55127038A JP 3443279 A JP3443279 A JP 3443279A JP 3443279 A JP3443279 A JP 3443279A JP S55127038 A JPS55127038 A JP S55127038A
- Authority
- JP
- Japan
- Prior art keywords
- heat sink
- flange
- stem
- pellet
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prevent a pellet from cracking even if its mounting plate is comparatively warped by providing a gas between a flange and a heat sink, around the upper and/or lower part of the inserted cylindrical surface of the heat sink.
CONSTITUTION: A stem 1 consists of a flange 2 and a heat sink 3 inserted into the hole in the center of the flange 2. Since the lower part of the hole of the flange 2 is enlarged, and only the total cylindrical surface of the upper part of the flange contacts with the heat sink 3, a gap 9 is formed between the lower cylindrical surface of the heat sink 3 and the lower inner wall of the hole. A pellet 4 is mounted on the upper surface of the heat sink 3. Thus, when the stem 1 is fixed to a mounting plate 6, even if the plate 6 is warped, no great bending load is placed on the heat sink 3, so that the pellet mounted on the upper surface of the heat sink 3 is practically prevented from being cracked.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3443279A JPS55127038A (en) | 1979-03-26 | 1979-03-26 | Stem and semiconductor device using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3443279A JPS55127038A (en) | 1979-03-26 | 1979-03-26 | Stem and semiconductor device using the same |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55127038A true JPS55127038A (en) | 1980-10-01 |
Family
ID=12414051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3443279A Pending JPS55127038A (en) | 1979-03-26 | 1979-03-26 | Stem and semiconductor device using the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55127038A (en) |
-
1979
- 1979-03-26 JP JP3443279A patent/JPS55127038A/en active Pending
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